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https://www.readbyqxmd.com/read/29775706/purification-and-characterization-of-an-organic-solvent-tolerant-and-detergent-stable-lipase-from-haloferax-mediterranei-cncmm-50101
#1
Siham Akmoussi-Toumi, Souad Khemili-Talbi, Imen Ferioune, Salima Kebbouche-Gana
The present study investigates the purification and biochemical characterization of an extracellular lipase (HML) from Haloarchaea Haloferax mediterranei strain ATS1, isolated from the Sebkha (Medea, Algeria). The pure protein was obtained with ammonium sulfate precipitation (40-70%)-dialysis and UNO Q-6 FPLC, and characterized biochemically. Matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF/MS) analysis revealed that the purified enzyme was a monomer, with a molecular mass of 45,011...
May 15, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29775295/noncovalent-grafting-of-a-dy-iii-2-single-molecule-magnet-onto-chemically-modified-multiwalled-carbon-nanotubes
#2
Vassilis Tangoulis, Nikolia Lalioti, John Parthenios, Nikos Boukos, Ondřej Malina, Jiří Tuček, Radek Zbořil
While synthetic methods for the grafting of nanoparticles or photoactive molecules onto carbon nanotubes (CNTs) have been developed in the last years, a very limited number of reports have appeared on the grafting of single-molecule magnets (SMMs) onto CNTs. There are many potential causes, mainly focused on the fact that the attachment of molecules on surfaces remains not trivial and their magnetic properties are significantly affected upon attachment. Nevertheless, implementation of this particular type of hybrid material in demanding fields such as spintronic devices makes of utmost importance the investigation of new synthetic protocols for effective grafting...
May 18, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29774550/efficacy-of-vaporized-hydrogen-peroxide-for-repeated-sterilization-of-a-single-use-single-incision-laparoscopic-surgery-port
#3
Valery F Scharf, Brian Dent, Megan E Jacob, Brandon Moore
OBJECTIVE: To determine the ability of vaporized hydrogen peroxide (VHP) to sterilize a single-use single-incision laparoscopic surgery port and its associated components after repeated simulated uses. STUDY DESIGN: Prospective in vitro experimental study. SAMPLE POPULATION: Six single-use single-incision laparoscopic surgery ports with associated cannulas and insufflation tubing. METHODS: Ports, cannulas, and tubing were subjected to 10 cycles of simulated use, bacterial inoculation with Staphylococcus pseudintermedius and Escherichia coli, decontamination and sterilization, and testing via culture based on their treatment group designation...
May 17, 2018: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/29774084/a-novel-dual-well-array-chip-for-efficiently-trapping-single-cell-in-large-isolated-micro-well-without-complicated-accessory-equipment
#4
Chenyu Wang, Wenwen Liu, Qingquan Wei, Lufeng Ren, Manqing Tan, Yude Yu
Conventional cell-sized well arrays have advantages of high occupancy, simple operation, and low cost for capturing single-cells. However, they have insufficient space for including reagents required for cell treatment or analysis, which restricts the wide application of cell-sized well arrays as a single-cell research tool alone. Here, we present a novel dual-well array chip, which integrates capture-wells (20  μ m in diameter) with reaction-wells (100  μ m in diameter) and describe a flow method for convenient single-cell analysis requiring neither complicated infra-structure nor high expenditure, while enabling highly efficient single cell trapping (75...
May 2018: Biomicrofluidics
https://www.readbyqxmd.com/read/29773443/sequential-webcam-monitoring-and-modeling-of-marine-debris-abundance
#5
Shin'ichiro Kako, Atsuhiko Isobe, Tomoya Kataoka, Kei Yufu, Shuto Sugizono, Charlie Plybon, Thomas A Murphy
The amount of marine debris washed ashore on a beach in Newport, Oregon, USA was observed automatically and sequentially using a webcam system. To investigate potential causes of the temporal variability of marine debris abundance, its time series was compared with those of satellite-derived wind speeds and sea surface height off the Oregon coast. Shoreward flow induced by downwelling-favorable southerly winds increases marine debris washed ashore on the beach in winter. We also found that local sea-level rise caused by westerly winds, especially at spring tide, moved the high-tide line toward the land, so that marine debris littered on the beach was likely to re-drift into the ocean...
May 14, 2018: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/29773390/structural-coloration-of-chitosan-coated-cellulose-fabrics-by-electrostatic-self-assembled-poly-styrene-methyl-methacrylate-acrylic-acid-photonic-crystals
#6
Gönül Yavuz, Andrea Zille, Necdet Seventekin, Antonio P Souto
The structural coloration of a chitosan-coated woven cotton fabric obtained by glutaraldehyde-stabilized deposition of electrostatic self-assembled monodisperse and spherically uniform (250 nm) poly (styrene-methyl methacrylate-acrylic acid) photonic crystal nanospheres (P(St-MMA-AA)) was investigated. Bright iridescent coatings displaying different colors in function of the viewing angle were obtained. The SEM, diffuse reflectance spectroscopy, TGA, DSC and FTIR analyses confirm the presence of structural color and the glutaraldehyde and chitosan ability to provide durable chemical bonding between cotton fabric and photonic crystal (PCs) coating with the highest degradation temperature and the lowest enthalpy...
August 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29773076/risk-factors-for-schistosomiasis-in-an-urban-area-in-northern-c%C3%A3-te-d-ivoire
#7
Richard K M'Bra, Brama Kone, Yapi G Yapi, Kigbafori D Silué, Ibrahima Sy, Danielle Vienneau, Nagnin Soro, Guéladio Cissé, Jürg Utzinger
BACKGROUND: Schistosomiasis is a water-based disease transmitted by trematodes belonging to the genus Schistosoma. The aim of this study was to assess the relationship between the prevalence of schistosomiasis and access to water, sanitation and hygiene (WASH) and environmental and socioeconomic factors in the city of Korhogo, northern Côte d'Ivoire. METHODS: A cross-sectional study including 728 randomly selected households was conducted in Korhogo in March 2015...
May 18, 2018: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/29772424/enhanced-hexavalent-chromium-removal-performance-and-stabilization-by-magnetic-iron-nanoparticles-assisted-biochar-in-aqueous-solution-mechanisms-and-application-potential
#8
Shishu Zhu, Xiaochen Huang, Dawei Wang, Li Wang, Fang Ma
The superiority of the nanoscale zero valent iron (nZVI) assisted biochar (BC) composites compared to traditional nZVI and its application feasibility are still unclear. This study aimed to provide valuable information for practical application. Firstly, the Fe/BC mass ratio of 2:1 during the preparation of nZVI-BC was proved obtaining the complete Cr6+ removal. Then, results revealed that the initial pH value tuned Cr6+ removal performance via varying existing Cr6+ species, surface charge, and chemical states of iron nanoparticles (NPs)...
May 9, 2018: Chemosphere
https://www.readbyqxmd.com/read/29771962/progression-of-the-radiologic-severity-index-predicts-mortality-in-patients-with-parainfluenza-virus-associated-lower-respiratory-infections
#9
Ajay Sheshadri, Dimpy P Shah, Myrna Godoy, Jeremy J Erasmus, Juhee Song, Liang Li, Scott E Evans, Roy F Chemaly, Burton F Dickey, David E Ost
BACKGROUND: Radiologic severity may predict adverse outcomes after lower respiratory tract infection (LRI). However, few studies have quantified radiologic severity of LRIs. We sought to evaluate whether a semi-quantitative scoring tool, the Radiologic Severity Index (RSI), predicted mortality after parainfluenza virus (PIV)-associated LRI. METHODS: We conducted a retrospective review of consecutively-enrolled adult patients with hematologic malignancy or hematopoietic stem cell transplantation and with PIV detected in nasal wash who subsequently developed radiologically-confirmed LRI...
2018: PloS One
https://www.readbyqxmd.com/read/29771610/tracheal-acid-or-surfactant-instillation-raises-alveolar-surface-tension
#10
Tam L Nguyen, Carrie E Perlman
Whether alveolar liquid surface tension, T, is elevated in the acute respiratory distress syndrome (ARDS) has not been demonstrated in situ in the lungs. Neither is it known how exogenous surfactant, which has failed to treat ARDS, affects in situ T. We aim to determine T in an acid-aspiration ARDS model before and after exogenous surfactant administration. In isolated rat lungs, we combine servo-nulling pressure measurement and confocal microscopy to determine alveolar liquid T according to the Laplace relation...
May 17, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29771494/screen-printed-washable-electronic-textiles-as-self-powered-touch-gesture-tribo-sensor-for-intelligent-human-machine-interaction
#11
Ran Cao, Xianjie Pu, Xinyu Du, Wei Yang, Jiaona Wang, Hengyu Guo, Shuyu Zhao, Zuqing Yuan, Chi Zhang, Congju Li, Zhong Lin Wang
Electronic textile (E-textile) with designable electric circuit and multi-functionalities holds great application prospect for future wearable electronics. However, most of the E-textiles still have critical challenges, including air permeability, satisfactory washability and massive fabrication. In this work, we fabricate a washable E-textile that addresses all of the concerns and show its application as a self-powered triboelectric gesture textile for intelligent human-machine interface. Utilizing conductive carbon nanotubes (CNTs) and screen-printing technology, this kind of E-textile embraces high conductivity (0...
May 17, 2018: ACS Nano
https://www.readbyqxmd.com/read/29770870/development-of-a-novel-ligand-binding-assay-for-relaxin-family-peptide-receptor-3-and-4-using-nanoluc-complementation
#12
Meng-Jun Hu, Xiao-Xia Shao, Hao-Zheng Li, Wei-Han Nie, Jia-Hui Wang, Ya-Li Liu, Zeng-Guang Xu, Zhan-Yun Guo
Relaxin family peptides perform a variety of biological functions by binding and activating relaxin family peptide receptor 1-4 (RXFP1-4), four A-class G protein-coupled receptors. In the present work, we developed a novel ligand binding assay for RXFP3 and RXFP4 based on NanoLuc complementation technology (NanoBiT). A synthetic ligation version of the low-affinity small complementation tag (SmBiT) was efficiently ligated to the A-chain N terminus of recombinant chimeric agonist R3/I5 using recombinant circular sortase A...
May 16, 2018: Amino Acids
https://www.readbyqxmd.com/read/29770659/-investigation-on-unhealthy-related-behaviors-of-echinococcosis-patients-in-garz%C3%A3%C2%AA-prefecture-sichuan-province
#13
Tian Ke-Qing, Tian Tian, Shi Guo-Qing, Cao Chun-Li, Hao Yu-Wan, Zhu Ze-Lin, Zhou Xiao-Nong
OBJECTIVE: To understand the unhealthy related behaviors of echinococcosis patients in Tibetan region in Sichuan Province, so as to provide the references for the health education of echinococcosis. METHODS: The echinococcosis patients who were registered in the Tibetan region in Sichuan Province were selected as target population. The basic situation and unhealthy related behaviors of them were surveyed by individual interviews. RESULTS: Totally 368 echinococcosis patients were investigated...
April 17, 2018: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
https://www.readbyqxmd.com/read/29770391/nitrogen-doped-graphitic-hierarchically-porous-carbon-nanofibers-obtained-via-bimetallic-coordination-organic-framework-modification-and-their-application-in-supercapacitors
#14
Yuechao Yao, Peng Liu, Xiaoyan Li, Shaozhong Zeng, Tongbin Lan, Haitao Huang, Xierong Zeng, Jizhao Zou
Herein, N-doped graphitic hierarchically porous carbon nanofibers (NGHPCF) were prepared by electrospinning the composite of bimetallic-coordination metal-organic frameworks and polyacrylonitrile, followed by a pyrolysis and acid wash process. Control over the N content, specific surface area, and degree of graphitization of NGHPCF materials has been realized by adjusting the Co/Zn metal coordination content as well as the pyrolysis temperature. The obtained NGHPCF with a high specific surface area (623 m2 g-1) and nitrogen content (13...
May 17, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29768464/photocatalytic-disinfection-of-surfaces-with-copper-doped-ti02-nanotube-coatings-illuminated-by-ceiling-mounted-fluorescent-light
#15
Tilen Koklic, Štefan Pintarič, Irena Zdovc, Majda Golob, Polona Umek, Alma Mehle, Martin Dobeic, Janez Štrancar
High economic burden is associated with foodborne illnesses. Different disinfection methods are therefore employed in food processing industry; such as use of ultraviolet light or usage of surfaces with copper-containing alloys. However, all the disinfection methods currently in use have some shortcomings. In this work we show that copper doped TiO2 nanotubes deposited on existing surfaces and illuminated with ceiling mounted fluorescent lights can retard the growth of Listeria Innocua by 80% in seven hours of exposure to the fluorescent lights at different places in a food processing plant or in the laboratory conditions with daily reinocuation and washing...
2018: PloS One
https://www.readbyqxmd.com/read/29768405/pathology-and-causes-of-death-in-stranded-humpback-whales-megaptera-novaeangliae-from-brazil
#16
Kátia Regina Groch, Josué Díaz-Delgado, Milton C C Marcondes, Adriana Castaldo Colosio, Elitieri B Santos-Neto, Vítor Luz Carvalho, Gisele Silva Boos, Ana Carolina Oliveira de Meirelles, Hernani Gomes da Cunha Ramos, Juliana Plácido Guimarães, João Carlos Gomes Borges, Jociery Einhardt Vergara-Parente, Judy A St Leger, Antonio Fernández, José Luiz Catão-Dias
This study describes the pathologic findings of 24 humpback whales (Megaptera novaeangliae) found stranded along the Brazilian coast from 2004 to 2016. Eighteen (75%) animals evaluated were found stranded alive. From these, 13 died naturally on shore and five were euthanized. Six died at sea and were washed ashore. Of the 24, 19 (79.2%) were calves, four (16.7%) were juveniles, and one (4.2%) was an adult. The most probable cause of stranding and/or death (CSD) was determined in 23/24 (95.8%) individuals. In calves, CSD included neonatal respiratory distress (13/19; 68...
2018: PloS One
https://www.readbyqxmd.com/read/29767229/usability-of-world-health-organization-disability-assessment-schedule-in-chronic-traumatic-brain-injury
#17
Sinikka Tarvonen-Schröder, Olli Tenovuo, Anne Kaljonen, Katri Laimi
OBJECTIVES: To investigate functioning measured with the 12-item World Health Organization Disability Assessment Schedule (WHODAS 2.0) in patients with mild, moderate and severe traumatic brain injury, and to compare patients' experiences with assessments made by their significant others and by consultant neurologists. METHODS: A total of 112 consecutive patients with traumatic brain injury (29 mild, 43 moderate, 40 severe) and their significant others completed a 12-item WHODAS 2...
May 16, 2018: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29767061/biochemical-and-histopathological-changes-in-sheep-fed-different-detoxified-karanj-pongamia-glabra-seed-cake-as-partial-protein-supplements
#18
Nira M Soren, Anil K Sharma, Vadali R B Sastry
The study investigated the long-term effect of feeding processed solvent extracted karanj ( Pongamia glabra ) cake (SKC) on gross pathology and histopathological changes in some vital organs, and on the activities of serum enzymes in Jalauni lambs. Twenty-four male lambs were divided into 4 groups and allotted randomly to a soybean meal (SBM) based control (CON) and 3 treatment groups receiving concentrate mixtures, containing water washed (WW), 2.5% lime (LM) and 0.4% binder (BN) treated SKC replacing 50% nitrogen of SBM to meet the protein requirements...
June 2017: Animal nutrition
https://www.readbyqxmd.com/read/29766701/new-multi-targeting-strategy-in-hair-growth-promotion-in-vitro-and-in-vivo-studies
#19
Barbara Marzani, Daniela Pinto, Elisabetta Sorbellini, Fabio Rinaldi
BACKGROUND: Considering the importance of hair in our modern society and the impact of hair loss, the efforts of researchers are addressed to better understand the mechanisms behind the hair cycle regulation and dysregulation. Because hair loss is multifactorial, differenced and new approaches are required. In particular we addressed our attention to two recently identified targets in hair cycling and growth control: olfactory receptor and autophagy. The aim of the study was to evaluate: the possible pro-autophagic effect of N1-methylspermidine (a spermidine analogue) in vitro and, in a double blind clinical trial, the safety and efficacy of topical daily application of a lotion containing N1-methylspermidine and Sandalore®...
June 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29765867/tongue-reshaping-a-new-surgical-method-to-prevent-self-sucking-in-dairy-cows
#20
Mohamed Wefky El-Sherif
Self-sucking behaviors lead to substantial milk loss and inflammation of the udder and teats among dairy cows. Both conservative and surgical approaches are available to prevent such behavior; however, the current methods are limited by variable efficacy and risk of complications. The objective of the present study was to evaluate a new minimally invasive technique for reshaping of the tongue to prevent self-sucking. The current technique was performed on five mixed breed dairy cows aged 4-6 years and with a mean weight 320 kgs...
2018: Open Veterinary Journal
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